More powertop. It's clearly misreporting, and I'm fairly sure the outstanding power must be going into the CPU, as that's the part of the system that's physically hot to the touch.
Power est. Usage Events/s Category Description 4.21 W 15.2% Device Display backlight 2.32 W 100.0% Device Radio device: thinkpad_acpi 1.58 W 100.0% Device USB device: usb-device-138a-0017 523 mW 10.5 pkts/s Device Network interface: wlan0 (iwlwifi) 278 mW 32.9 ms/s 18.4 Process /usr/lib/thunderbird/thunderbird Also, this data implies that my backlight has a maximum power of 28 watts, which is false. It's about 5, measured on a nonbroken kernel/bios /driver-set. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1535426 Title: CPU runs at high speed after upgrade Status in linux package in Ubuntu: Confirmed Bug description: After a dist-upgrade from 15.04 to 15.10, moving from kernel 3.19.0-43 to 4.2.0-23, my laptop CPU runs continuously at 3GHz, and never slows down to 800MHz, as it used to. This has reduced my battery life from 24 hours to 8 hours. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-23-generic 4.2.0-23.28 ProcVersionSignature: Ubuntu 4.2.0-23.28-generic 4.2.6 Uname: Linux 4.2.0-23-generic x86_64 ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: shevek 2664 F.... pulseaudio /dev/snd/controlC0: shevek 2664 F.... pulseaudio CurrentDesktop: XFCE Date: Mon Jan 18 11:38:29 2016 HibernationDevice: RESUME=UUID=22fd2208-7557-432d-bbff-95dd97905323 InstallationDate: Installed on 2015-05-18 (244 days ago) InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1) MachineType: LENOVO 20CKCT01WW ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-23-generic.efi.signed root=/dev/mapper/xubuntu--vg-root ro noprompt persistent quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.2.0-23-generic N/A linux-backports-modules-4.2.0-23-generic N/A linux-firmware 1.149.3 SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: Upgraded to wily on 2016-01-17 (1 days ago) dmi.bios.date: 08/20/2015 dmi.bios.vendor: LENOVO dmi.bios.version: N11ET34W (1.10 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CKCT01WW dmi.board.vendor: LENOVO dmi.board.version: 0B98417 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN11ET34W(1.10):bd08/20/2015:svnLENOVO:pn20CKCT01WW:pvrThinkPadT550:rvnLENOVO:rn20CKCT01WW:rvr0B98417WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20CKCT01WW dmi.product.version: ThinkPad T550 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1535426/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
